Global error handler for any exception

Question

Is there a way to add a global catch-all error handler in which I can change the response to a generic JSON response?

I can\'t use the got_request_exception

Answer 1

Far from elegant, but the following works for tying all subclasses of HTTPException to a single error handler:

from flask import jsonify
from werkzeug.exceptions import HTTPException

def handle_error(error):
    code = 500
    if isinstance(error, HTTPException):
        code = error.code
    return jsonify(error='error', code=code)

for cls in HTTPException.__subclasses__():
    app.register_error_handler(cls, handle_error)